Patents by Inventor Dave Narasimhan
Dave Narasimhan has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
-
Patent number: 7213419Abstract: A knitted glove made by creating each of the sections of the glove using a separate knitting course on a flat knitting machine providing variable stitch dimensions. Each of these sections provides its own designed stretch characteristics so that the glove fits tightly, yet provides flexibility and ease of movement. The variable stitch dimension is achieved by 1) varying the depth of penetration of a knitting needle into a fabric being knitted by a computer program, 2) adjusting the tension of yarn between a pinch roller and a knitting head by a mechanism controlled by a computer, and 3) casting off or picking up additional stitches in a course. The glove includes a plurality of finger components made from at least ten separately knitted sections, two palm components, each of which is made from at least two separately knitted sections, and a wrist component made from at least one knitted section.Type: GrantFiled: July 13, 2005Date of Patent: May 8, 2007Assignee: Ansell Healthcare Products LLCInventors: Fred Hardee, Greg Plemmons, Eric Thompson, San Allen, Dave Narasimhan
-
Patent number: 7214262Abstract: A temporary cosmetic dental coating has a transparent resin matrix containing embedded glass microspheres. The refractive index of the microspheres is at least 0.03 greater than the refractive index of the transparent resin matrix. Incoming light is reflected back in the same direction as it was emanated, providing a lustrous dental coating that is cosmetically appealing and covers dental defects and discoloration. The transparent resin matrix with glass microspheres is formed by mixing together a methacrylate based liquid monomer of methyl methacrylate or BIS-GMA and glass microspheres coated with activators/catalysts. The user applies the mixed composition to the teeth to form a temporary cosmetic dental coating, which is readily removed using a dental pick. A lac resin dissolved in ethyl alcohol is optionally mixed with glass microspheres and applied to teeth surfaces. The coating is hardened by alcohol evaporation and removed by alcohol dissolution.Type: GrantFiled: September 23, 2004Date of Patent: May 8, 2007Assignee: I Did It, Inc.Inventors: Marni Markell Hurwitz, Dave Narasimhan
-
Publication number: 20070084251Abstract: A knitted glove made by creating each of the sections of the glove using a separate knitting course on a flat knitting machine providing variable stitch dimensions. Each of these sections provides its own designed stretch characteristics so that the glove fits tightly, yet provides flexibility and ease of movement. The variable stitch dimension is achieved by 1) varying the depth of penetration of a knitting needle into a fabric being knitted by a computer program, 2) adjusting the tension of yarn between a pinch roller and a knitting head by a mechanism controlled by a computer, and 3) casting off or picking up additional stitches in a course. The glove includes a plurality of finger components made from at least ten separately knitted sections, two palm components, each of which is made from at least two separately knitted sections, and a wrist component made from at least one knitted section.Type: ApplicationFiled: December 19, 2006Publication date: April 19, 2007Applicant: Ansell Healthcare Products LLCInventors: Fred Hardee, Greg Plemmons, Eric Thompson, San Allen, Dave Narasimhan
-
Publication number: 20070022511Abstract: A knitted glove made by creating each of the at least fifteen sections using a separate knitting course on a flat knitting machine providing variable stitch dimensions with one or two yarns. Each of these sections provides custom stretch characteristics using one or two yarns providing a tight glove that provides flexibility and ease of movement. The variable stitch dimension is achieved by 1) varying the depth of penetration of the knitting needle into fabric being knitted by a computer program, 2) adjusting the tension of yarn between a pinch roll and knitting head by a mechanism controlled by a computer and 3) casting off or picking up additional stitches in a course. The glove includes five finger components made from at least ten separately knitted sections, two palm components each made from at least two separately knitted sections, and a wrist component made from at least one knitted section.Type: ApplicationFiled: June 1, 2006Publication date: February 1, 2007Inventors: Dave Narasimhan, Eric Thompson, Jeffrey Moreland, Gerardo Rodriguez Garay, Norberto Perales Solis
-
Publication number: 20060241396Abstract: A multi-modal detection system is appointed to reliably detect metallic surgical instruments such as scalpels, hemostats and the like, and non-metallic surgical implements such as sponges or laparotomy pads and gauze pad associated with an embedded marker. A first system detects metallic surgical instruments and a second independent system detects non-metallic surgical implements. The systems operate sequentially. The metallic surgical implements are removed immediately after detection and prior to scanning by the second system. Shielding of markers embedded in non-metallic surgical implements is thereby prevented. The marker may be a mechanically resonant target or RFID target. The first and second systems may be attached to be a rollaway cart and can comprise hand held antenna.Type: ApplicationFiled: February 10, 2005Publication date: October 26, 2006Inventors: Carl Fabian, Dave Narasimhan, Ernest Buff
-
Publication number: 20060187059Abstract: A radio-frequency surgical implement detection system detects surgical implements in a surgical wound during and at the completion of a surgical procedure. Surgical implements, including surgical sponges or laparotomy pads, gauze pads and metallic surgical instruments, are individually attached to a non battery-powered, encapsulated radio-frequency marker. The marker comprises an integrated chip having a burnt-in memory code, which is broadcast through an antenna using a modulated carrier frequency. The code is received by an interrogating antenna of a detector. The interrogating antenna provides a power pulse, which is received by the antenna of the radio-frequency marker. The power pulse charges a capacitor, which proves power for the read function, carrier frequency modulation function and broadcast function of the integrated chip, permitting each marker-containing implement to be specifically identified.Type: ApplicationFiled: February 10, 2005Publication date: August 24, 2006Inventors: Carl Fabian, Dave Narasimhan
-
Publication number: 20060185608Abstract: A breakable odor control additive provides release of fragrance or odor masking scent when present in a litter formulation that is used by a cat or other animal within a litter box. The odor control additive comprises a plurality of fragrant-scented balls. Each of the balls has a central, compressible, porous, open-celled substrate, which is saturated with a fragrant scent. This central, fragrance-saturated substrate is coated with a barrier coating, which prevents evaporation of the fragrance and protects the substrate against deterioration by urine and other contaminants deposited on the litter. When cat or animal enters the litter box, a load is applied to the fragrant-scented balls. The barrier coating breaks, exposing the fragrant coated substrate. Fragrance evaporating from the substrate provides odor control and a pleasant scent.Type: ApplicationFiled: February 7, 2006Publication date: August 24, 2006Inventors: Marni Hurwitz, Dave Narasimhan, Ernest Buff
-
Publication number: 20060189493Abstract: A substantially anhydrous, thickened, spreadable, warming lubricant composition comprising a mixture of glycerin, polyhydric alcohol, a non-ionic surfactant, and a Carbomer thickener, the surfactant improving wetting and spreadability of the composition on skin and latex, and the thickener providing a creamy rich feel to the composition, such that the composition can be applied to skin or a condom and provide an optimal warming effect upon contact with ambient moisture during use and such that the composition can be added to a condom package and, over the course of a week, spread and coat nearly the entire internal and external surfaces of the condom.Type: ApplicationFiled: February 23, 2005Publication date: August 24, 2006Applicant: ANSELL HEALTHCARE PRODUCTS LLCInventors: Beng Chuah, David Lucas, Tsui Yeun, Dave Narasimhan
-
Publication number: 20060188528Abstract: A substantially anhydrous, spreadable warming lubricant composition comprising a mixture of glycerin, a polyhydric alcohol, and a non-ionic surfactant, the viscosity of the composition being less than that of glycerin but greater than that of the polyhydric alcohol, thereby promoting formation of a useful thin layer on a surface with which the composition is brought into contact, the surfactant improving wetting and spreadability of the composition on skin and latex, such that the composition can be applied to skin or a condom and provide an optimal warming effect upon contact with ambient moisture during use and such that the composition can be added to a condom package and, over the course of about a week, spread and coat nearly the entire internal and external surfaces of the condom.Type: ApplicationFiled: February 23, 2005Publication date: August 24, 2006Applicant: ANSELL HEALTHCARE PRODUCTS LLCInventors: Beng Sim Chuah, David Lucas, Tsui Shih Yeun, Dave Narasimhan
-
Publication number: 20060150300Abstract: Latex articles with geometrically defined surface structure providing enhanced grip characteristics in dry, wet or oily environment; and a method of making same comprising applying a polymeric coagulant coating to a smooth former surface, wherein the coating becomes tacky during drying, applying discrete coagulant particles of selected size, shape and distribution to the tacky coating to attach and protrude from the former surface with the polymeric coagulant coating, dipping the former into an aqueous latex emulsion, wherein the polymeric coagulant coating and the discrete coagulating particles destabilize the latex, thereby developing a latex layer, vulcanizing and stripping the latex article inside out, and dissolving the discrete coagulant particles in water or suitable solvents to reveal the geometrically designed texture with pre-selected size, shape and distribution of impressions providing improved dry, wet and oily surface grip by removal of a fluid boundary layer.Type: ApplicationFiled: January 12, 2005Publication date: July 13, 2006Applicant: ANSELL HEALTHCARE PRODUCTS LLCInventors: Noorman Hassan, David Lucas, Fazli Shani, Dave Narasimhan
-
Patent number: 7049972Abstract: An accurate, fast-acting, wearable lightning strike hazard detector has a plurality of collecting plates for collection of arriving charged particles. The collecting plates are insulated from each other by an insulating mechanism. A connecting mechanism electrically connects the collecting plates to a bleeding circuit to bleed accumulated charges to a ground plane. The voltage within the bleeding circuit is determined by a voltage measuring mechanism. A voltage accumulation mechanism measures the accumulated voltage of each plate and its rate of voltage accumulation as a function of time. Voltage accumulation and voltage/time data are interpreted by an algorithm to determine lightning strike potential. A signal generating mechanism connected to the algorithm mechanism generates a signal when said voltage accumulation and voltage accumulation rate exceed preselected limits. The signal actuates an alarm mechanism, which provides an audible or visual alarm to warn against an impending lightning strike.Type: GrantFiled: August 29, 2003Date of Patent: May 23, 2006Inventors: Carl E. Fabian, Dave Narasimhan
-
Publication number: 20060070167Abstract: A hand-friendly rubber glove article comprising a dried coating of an emulsified hand-friendly mixture comprising at least one water-soluble humectant moisturizer, at least one water-soluble lubricant, at least one water-soluble surfactant, and at least one water-insoluble occlusive moisturizer, which is finely and substantially uniformly dispersed within the mixture, which is transferred to the skin of a wearer upon activation with skin-generated moisture, and, optionally, a fabric-adherent cuff region and/or a texturized surface and methods of making the emulsified hand-friendly mixture and the glove article.Type: ApplicationFiled: December 1, 2005Publication date: April 6, 2006Applicant: ANSELL HEALTHCARE PRODUCTS LLCInventors: Aik Eng, Hee Lai, Bit Yee, Soo Kwan, Dave Narasimhan
-
Publication number: 20060068140Abstract: An article comprising at least one cured, liquid-impervious polymeric shell substantially free from defects, at least one liner, and a non-tacky, thermoplastic adhesive layer between the shell and the liner, wherein the adhesive layer is melted and solidified to create a non-tacky bond between the shell and the liner, which can be moisture-absorbing or cut-resistant, whereby the liner supports and limits stretch ability of the shell, thereby preventing adhesive delamination between the adhesive layer and either of the shell and/or the liner; a method for the manufacture of an article comprising a supported, polymeric shell, such as a glove, a gauntlet, an apron, or a boot, comprising providing a cured, liquid-impervious, polymeric shell, providing a knitted/woven liner, incorporating a non-tacky, thermoplastic adhesive layer between the shell and the liner, such as by hot-melt spraying, dry-powder spraying or fiber-coating, creating intimate contact between the shell, the adhesive layer, and the liner, subjecType: ApplicationFiled: August 24, 2005Publication date: March 30, 2006Applicant: ANSELL HEALTHCARE PRODUCTS LLCInventors: Michael Flather, Paul Saunders, Dave Narasimhan
-
Publication number: 20060062700Abstract: A low cost, easy to manufacture scent-dispersing mat apparatus has a flexible closed cell foam mat containing a plurality of blind holes extending from its upper surface. These blind holes are partially filled with a fragrant liquid scent, creating air spaces thereabove. The upper surface of the flexible closed cell foam mat is sealed with a polymeric sheet that entraps the air spaces in the blind holes, causing entrapped air to become saturated with fragrant scent vapor. The polymeric sheet is perforated by one or more fine needles at the blind hole locations. The perforations permit escape of fragrant scent-saturated air to the ambient when pressure is applied to the top surface of the mat. Upon release of pressure, the foam mat and the blind holes recover their shape; the entrapped air pressure decreases, drawing fresh ambient air into the entrapped air spaces.Type: ApplicationFiled: November 2, 2005Publication date: March 23, 2006Inventors: Marni Hurwitz, Dave Narasimhan
-
Publication number: 20060063853Abstract: A temporary cosmetic dental coating has a transparent resin matrix containing embedded glass microspheres. The refractive index of the microspheres is at least 0.03 greater than the refractive index of the transparent resin matrix. Incoming light is reflected back in the same direction as it was emanated, providing a lustrous dental coating that is cosmetically appealing and covers dental defects and discoloration. The transparent resin matrix with glass microspheres is formed by mixing together a methacrylate based liquid monomer of methyl methacrylate or BIS-GMA and glass microspheres coated with activators/catalysts. The user applies the mixed composition to the teeth to form a temporary cosmetic dental coating, which is readily removed using a dental pick. A lac resin dissolved in ethyl alcohol is optionally mixed with glass microspheres and applied to teeth surfaces. The coating is hardened by alcohol evaporation and removed by alcohol dissolution.Type: ApplicationFiled: September 23, 2004Publication date: March 23, 2006Inventors: Mami Hurwitz, Dave Narasimhan
-
Publication number: 20060010930Abstract: A knitted glove made by creating each of the sections of the glove using a separate knitting course on a flat knitting machine providing variable stitch dimensions. Each of these sections provides its own designed stretch characteristics so that the glove fits tightly, yet provides flexibility and ease of movement. The variable stitch dimension is achieved by 1) varying the depth of penetration of a knitting needle into a fabric being knitted by a computer program, 2) adjusting the tension of yarn between a pinch roller and a knitting head by a mechanism controlled by a computer, and 3) casting off or picking up additional stitches in a course. The glove includes a plurality of finger components made from at least ten separately knitted sections, two palm components, each of which is made from at least two separately knitted sections, and a wrist component made from at least one knitted section.Type: ApplicationFiled: July 13, 2005Publication date: January 19, 2006Applicant: ANSELL HEALTHCARE PRODUCTS LLCInventors: Fred Hardee, Greg Plemmons, Eric Thompson, San Allen, Dave Narasimhan
-
Patent number: 6864007Abstract: A corrosion resistant coated fuel cell plate and method of making the same are embodied in a metal plate provided with a graphite emulsion coating and then a layer of graphite foil which is pressed over the coating. The graphite emulsion bonds the graphite foil to the metal plate and seals fine scale porosities in the graphite foil. Flow fields are formed by stamping the coated fuel cell plate.Type: GrantFiled: October 8, 1999Date of Patent: March 8, 2005Assignee: Hybrid Power Generation Systems, LLCInventors: Zafar Iqbal, Dave Narasimhan, James V. Guiheen, Timothy Rehg
-
Publication number: 20050046574Abstract: An accurate, fast-acting, wearable lightning strike hazard detector has a plurality of collecting plates for collection of arriving charged particles. The collecting plates are insulated from each other by an insulating mechanism. A connecting means electrically connects the collecting plates to a bleeding circuit to bleed accumulated charges to a ground plane. The voltage within the bleeding circuit is determined by a voltage measuring mechanism. A voltage accumulation mechanism measures the accumulated voltage of each plate and its rate of voltage accumulation as a function of time. Voltage accumulation and voltage time data are interpreted by an algorithm to determine lightning strike potential. A signal generating means connected to the algorithm means generates a signal when said voltage accumulation and voltage accumulation rate exceed preselected limits. The signal actuates an alarm means, which provides an audible or visual alarm to warn against an impending lightning strike.Type: ApplicationFiled: August 29, 2003Publication date: March 3, 2005Inventors: Carl Fabian, Dave Narasimhan
-
Patent number: 6811894Abstract: A nickel base single crystal compliant layer on a ceramic blade has the capability to sustain high stresses and high operating temperature. Layers of nickel and platinum bonded on a single crystal superalloy over a sputtered gold-chromium layer support the high stress levels at elevated temperature without extrusion of the soft platinum or nickel layer and without destruction of an NiO compliant surface. The compliant layers have survived stress and temperature conditions without failure to the ceramic blade and the system can be stressed/heated and unloaded/cooled repeatedly without damage to the ceramic blades. A single crystal nickel base superalloy (i.e., SC180) has high strength properties at elevated temperature. Thin layers of chromium followed by gold are e-beam evaporated on one side of a polished surface of the alloy. Pure nickel is electroplated over this e-beam gold-chromium layer. Platinum is either electroplated or plated electrolessly over the nickel layer.Type: GrantFiled: June 6, 2003Date of Patent: November 2, 2004Assignee: Honeywell International, Inc.Inventors: Dave Narasimhan, Alexander S. Kozlov, Margaret Eagan, Milton Ortiz
-
Patent number: 6797332Abstract: A method for forming a carbon deposit inhibiting thermal barrier coating for an internal element or component of a gas turbine engine. Such coating includes a layer of thermal barrier material coated onto the surface of an engine component that will be exposed to the flow of burning engine gases. Such coating further includes a layer of carbon deposit inhibiting material coated on top of the layer of thermal barrier material.Type: GrantFiled: September 9, 2003Date of Patent: September 28, 2004Assignee: Honeywell International, Inc.Inventors: Thomas E. Strangman, Dave Narasimhan, Jeffrey P. Armstrong, Keith R. Karasek